SB 12.7.23-24

brāhmaṁ pādmaṁ vaiṣṇavaṁ ca
 śaivaṁ laiṅgaṁ sa-gāruḍaṁ
nāradīyaṁ bhāgavatam
 āgneyaṁ skānda-saṁjñitam
bhaviṣyaṁ brahma-vaivartaṁ
 mārkaṇḍeyaṁ sa-vāmanam
vārāhaṁ mātsyaṁ kaurmaṁ ca
 brahmāṇḍākhyam iti tri-ṣaṭ
Synonyms: 
brāhmam — the Brahma Purāṇa; pādmam — the Padma Purāṇa; vaiṣṇavam — the Viṣṇu Purāṇa; ca — and; śaivam — the Śiva Purāṇa; laiṅgam — the Liṅga Purāṇa; sa-gāruḍam — along with the Garuḍa Purāṇa; nāradīyam — the Nārada Purāṇa; bhāgavatam — the Bhāgavata Purāṇa; āgneyam — the Agni Purāṇa; skānda — the Skanda Purāṇa; saṁjñitam — known as; bhaviṣyam — the Bhaviṣya Purāṇa; brahma-vaivartam — the Brahma-vaivarta Purāṇa; mārkaṇḍeyam — the Mārkaṇḍeya Purāṇa; sa-vāmanam — together with the Vāmana Purāṇa; vārāham — the Varāha Purāṇa; mātsyam — the Matsya Purāṇa; kaurmam — the Kūrma Purāṇa; ca — and; brahmāṇḍa-ākhyam — known as the Brahmāṇḍa Purāṇa; iti — thus; tri-ṣaṭ — three times six.
Translation: 
The eighteen major Purāṇas are the Brahma, Padma, Viṣṇu, Śiva, Liṅga, Garuḍa, Nārada, Bhāgavata, Agni, Skanda, Bhaviṣya, Brahma-vaivarta, Mārkaṇḍeya, Vāmana, Varāha, Matsya, Kūrma and Brahmāṇḍa Purāṇas.
Purport: 

Śrīla Jīva Gosvāmī has quoted from the Varāha Purāṇa, Śiva Purāṇa and Matsya Purāṇa in confirmation of the above two verses.